[Tagging] Mapping cave tunnels passable by human

[Friedrich Volkmann]

On 14.08.2014 16:54, Richard Z. wrote:
>> Maybe not completely obvious, but I would agree with Janko. In my opinion,
>> a "tunnel" is man-made, while a "cave" is not.
> 
> whether or not man-made is not the biggest problem.
> 
> The big problem with tunnel=yes or tunnel=cave is that they only would ever 
> get rendered if they were also tagged as a highway or similar.
> This is a big disadvantage because most caves don't have even paths.

Indeed, and common tunnel signatures make believe that there is one entrance
on each end, which is not true for many caves.

-- 
Friedrich K. Volkmann       http://www.volki.at/
Adr.: Davidgasse 76-80/14/10, 1100 Wien, Austria